What the Vehicle Code says is not relevant. What YOU'RE saying is akin to "because my neighbor drives on my driveway, it's now a "public road".
To quote you: "Vehicle code section 611 'A toll road is a publically owned way...'". The Bowen Ranch roads are NOT "publically owned" roads by any stretch of the imagination -- use of a road by the public does NOT make it a "publically owned way".
"Boundaries" are not the issue. DCHS, Inc is a 3rd party to any and all of the transactions regarding ownership. DCHS, Inc's ONLY interest in any of this is the QUITCLAIM deed, obtained AFTER the ownership of the buildings had ALREADY reverted back to the OWNERS of the land they are situated on, essentially.
Whether this is completely accurate or not, this IMPORTANT detail stands: When Mrs. Bowen's land was sold, the new owners had a certain time to REMOVE the buildings from the adjacent property or LOSE THEM to the owners of the land they were situated upon. Since Mike now owns BOTH parcels, it should be clear that the buildings are DEFINITELY on Mike's land, and the previous owners MISSED their chance to regain ownership of the buildings, and any subsequent QUITCLAIM deed regarding the buildings is baseless.
This also may seem like a minor detail, but Mike has been paying "rent" on the buildings and land for 10 years. What has DCHS, Inc paid? Zip. Zero. Nada. Has DCHS, Inc ever even occupied the buildings? No. Not. Never.
Since DCHS, Inc NEVER was involved in OWNERSHIP of the lands involved, it seems pretty clear that DCHS, Inc is merely trying to salvage a bad investment of $1500, regardless of facts, and will in time have to write if off as a just that - a bad investment. I dunno. Maybe you can sue the Hoffman's for selling you a bogus deed.
By the way, I have a bridge for sale you may be interested in.
P.S. - Katrina: Since I don't know you, my posts should not be taken as an affront to you, personally. I'm sure you're convinced of your "rightness" in this situation and I can't blame you for pursuing your course. Good luck, but my personal assessment of the limited information I've acquired thus far shows that DCHS, Inc cannot win this one.
P.S.S. - The legal concepts in the preceeding posts are not totally foreign to me, as I have at least some limited experience in the Real Estate profession, not to mention securites, mortgage, and insurance licences in 3 states. Perhaps I should have taken the advice of my family and become an attorney as well - A jack-of-nearly-all-trades and master of all.